Since I seem to be about the only windows user of vcs in the world ;-) I wonder a bit about this - I was under the impression this was not recommended practice in a windows VCS environment, but it would be supported according to these mails?
/a Sent from a p990i ________________ Reply Header ________________ Subject: Re: [Veritas-ha] LLT heartbeat redundancy Author: "Sandeep Agarwal (MTV)"<[email protected]> Date: 2009 May 13th 18:23 LLT does support Layer 2 link aggregation and can work over trunks/bonds/aggregated links as long as a single device is presented to it: Linux - Bonding Solaris - Sun Trunking (now link aggregation/dladm in Solaris 10) HPUX - Auto Port Aggregation AIX - Etherchannel IPMP is at Layer 3 and Bonding and the others are at Layer 2 - hence we can't compare the two. It would be better to compare Sun Trunking and Linux Bonding. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Imri Zvik Sent: Wednesday, May 13, 2009 2:38 AM To: [email protected] Subject: Re: [Veritas-ha] LLT heartbeat redundancy On Wednesday 13 May 2009 06:04:38 John Cronin wrote: > Getting slightly off topic, but still somewhat relevant. > > Linux has many flavors of Ethernet bonding. To be sure, link > aggregation resulting in increased bandwidth is generally supported on a single switch. > However, Linux does have an active-passive bonding that is > specifically intended for HA solutions. AIX has a similar > configuration with the unfortunate name of EtherChannel Network Backup > Interface - it does NOT rely on Cisco EtherChannel to work. Both of these create a "virtual NIC" > that hides the complexity, making the interface group appear to be a > single NIC. You don't need a bunch of switch link aggregation magic > (802.11ad or > EtherChannel) to implement active-passive NIC failover in this manner. > > In my experience, both Linux and AIX Ethernet bonding are easier to > use than Sun IPMP, and they also are far more reliable. I have a lot > of experience with all three of these, and in my opinion IPMP is the > worst - I have experienced many "false failures" with IPMP, and I have > had to do a bunch of silliness with static routes to make it work in > certain environments (prior to the new link based IPMP - but it has > issues of its own too). I wish Sun wou ------------------------------------------------------------------------------------ This email originates from Steria AB, Box 544, SE-182 15 Danderyd, Sweden, +46 8 622 42 00, http://www.steria.se. This email and any attachments may contain confidential/intellectual property/copyright information and is only for the use of the addressee(s). You are prohibited from copying, forwarding, disclosing, saving or otherwise using it in any way if you are not the addressee(s) or responsible for delivery. If you receive this email by mistake, please advise the sender and cancel it immediately. Steria may monitor the content of emails within its network to ensure compliance with its policies and procedures. Any email is susceptible to alteration and its integrity cannot be assured. Steria shall not be liable if the message is altered, modified, falsified, or even edited.
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